Update library

- Update library documentation for TK.
  Added module as well as class documentation to
  be compatible with YUI doc quirks.

- Add TK.init and relevant initializer properties.

- Add TK.extend to have a probable future extension possibility.

- Register namespaces with default constructors
  instead of empty objects.

- Update TK.String.capitalize method to provide option
  to ignore case of remaining string.

- Use capitalize method within classify method in TK.String
  class.

- Add style.css and integrate it with index.htm
Update library documentation